ATI Shell Assy - 7.425 - Steel - 6 Grv - Duramax - 01-05 - LB7 & Lly - Ext Bal - 3 Ring - Diesel

ATI is well-known for making robust performance parts, and this steel crankshaft pulley is a prime example of their work. This specific shell assembly, part number 917371S, is built for 2001-2005 Duramax diesel engines, covering both the LB7 and LLY engine codes. It’s designed with an external balance and features a 7.425-inch diameter with 6 grooves, making it a solid option for those looking to maintain or improve their engine's performance.

Constructed from durable steel, this pulley is built to withstand the demands of a diesel engine. The 3-ring design contributes to its overall strength and reliability. If you're working on a Duramax from the early 2000s, this ATI crankshaft pulley is a well-made component that fits right and is designed to perform.